ПЕРСПЕКТИВЫ ДЕКОРАТИВНЫХ ВИДОВ ФЛОРЫ АЛТАЯ В УСЛОВИЯХ НОВОСИБИРСКА

Abstract

The introduction of ornamental plants of natural flora to enrich regional assortments for an urbanized environment is a current research area. The results of the long-term testing of 40 perennials attracted from the natural habitats of Altai to Novosibirsk have been summed up. The features of the phenological development of species are revealed. Seasonal rhythms are stable, there are 3 long-vegetating phenorhythmotypes and 5 groups according to the timing of flowering start. Most Altai species are characterized by a spring-summer green phenorhythmotype (50%), resume vegetation early (the third decade of April) and finish it late (late September–mid-October), bloom in the late spring or early summer (27.5% and 32.5%, respectively). The duration of the prefloral period as an indicator of the intensity of perennial development increases from 8–18 days for earlyflowering species to 79–99 days for late-flowering ones. As a rule, a high variability of phenophases timing and interphase periods has been shown, except for the duration of vegetation (6.5% on average), indicating an active adaptation of species to local conditions. Among the tested species, 4 don’t fruit and 22 grow weakly. According to reproductive capacity and sustainability, 2 species were evaluated as unpromising, 22 are suitable for cultivation in the forest-steppe of Western Siberia on an average agrophone, and 16 of them can grow under specific microclimatic conditions and maintenance practices. In general, mesopsychrophytes from the high-mountain zone, as well as some xeropetrophytes, are less sustainable ang durable from Altai species: the former are sensitive to elevated temperatures and dryness in summer, the latter suffer from deep snow cover in Novosibirsk.